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Finding the Fourth Proportional to 57,428.88, 79,258.95 and 34,768.73

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Solution

The fourth proportional to 57,428.88, 79,258.95 and 34,768.73 is: 47,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,428.88 : 79,258.95 = 34,768.73 : x
  2. Step 2: Convert to fraction form
    57,428.88/79,258.95 = 34,768.73/x
  3. Step 3: Cross multiply
    57,428.88x = 79,258.95 × 34,768.73
  4. Step 4: Simplify right side
    57,428.88x = 2,755,732,636.34
  5. Step 5: Solve for x
    x = 2,755,732,636.34/57,428.88
  6. Step 6: Final answer
    x = 47,985.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.